Add missing migration for fields in Cisco Nexus table

Change-Id: Ib31ec7f92d568c21d607b0bf003494acd1e3a3e8
Closes-bug: #1232360

neutron/db/migration/alembic_migrations/versions/3a520dd165d0_cisco_nexus_multi_switch.py

@@ -0,0 +1,59 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+#
+# Copyright 2013 OpenStack Foundation
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+#
+
+"""Cisco Nexus multi-switch
+
+Revision ID: 3a520dd165d0
+Revises: 2528ceb28230
+Create Date: 2013-09-28 15:23:38.872682
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '3a520dd165d0'
+down_revision = '2528ceb28230'
+
+# Change to ['*'] if this migration applies to all plugins
+
+migration_for_plugins = [
+    'neutron.plugins.cisco.network_plugin.PluginV2'
+]
+
+from alembic import op
+import sqlalchemy as sa
+
+from neutron.db import migration
+
+
+def upgrade(active_plugins=None, options=None):
+    if not migration.should_run(active_plugins, migration_for_plugins):
+        return
+
+    op.add_column(
+        'cisco_nexusport_bindings',
+        sa.Column('instance_id', sa.String(length=255), nullable=False))
+    op.add_column(
+        'cisco_nexusport_bindings',
+        sa.Column('switch_ip', sa.String(length=255), nullable=False))
+
+
+def downgrade(active_plugins=None, options=None):
+    if not migration.should_run(active_plugins, migration_for_plugins):
+        return
+
+    op.drop_column('cisco_nexusport_bindings', 'switch_ip')
+    op.drop_column('cisco_nexusport_bindings', 'instance_id')